Cationite
陽離子交換劑
??? 情景例句
Is Miss Zhang in?
張小姐在嗎？
You are better than I am.
你比我好。
No, it isn't. Ask that woman. I think it's her bike.
不，不是我的。問問那個(gè)婦女嗎。我想這是她的自行車。